Home / 131,719.24-181,772.58-72,103.24

Finding the Fourth Proportional to 131,719.24, 181,772.58 and 72,103.24

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Solution

The fourth proportional to 131,719.24, 181,772.58 and 72,103.24 is: 99,502.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,719.24 : 181,772.58 = 72,103.24 : x
  2. Step 2: Convert to fraction form
    131,719.24/181,772.58 = 72,103.24/x
  3. Step 3: Cross multiply
    131,719.24x = 181,772.58 × 72,103.24
  4. Step 4: Simplify right side
    131,719.24x = 13,106,391,961.16
  5. Step 5: Solve for x
    x = 13,106,391,961.16/131,719.24
  6. Step 6: Final answer
    x = 99,502.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.